Classification of Hadamard matrices of order 28
Classification of Hadamard matrices of order 28
复制标题
28 阶 Hadamard 矩阵的分类
DOI:
10.1016/0012-365x(94)90024-8
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
Hiroshi Kimura
中科院分区:
文献类型:
--
作者:
Hiroshi Kimura
We constructed all inequivalent Hadamard matrices with Hall sets of order 28 and classified byK-matrices associated with Hadamard matrices except five matrices in our earlier work (Kimura, 1988)(see also Kimura, to appear; Kimura and Ohmori, 1987). In this paper we prove that Hadamard matrices with the trivialK-matrix are equivalent to the Paley matrix defined by the squares in GF(27). By this theorem we get a complete classification of Hadamard matrices of order 28 and we have inequivalent Hadamard matrices of order 28.